Wood-sawing machine.



G. H. BROWN.

WOOD SAWING MACHINE.

APPLICATION FILED NOV. 18, 1909.

Patented Apr. 16, 1912.

G. H. BROWN.

WOOD SAWING MACHINE.

APPLICATION FILED NOV. 18, 1 909.

1,023,296. Patented Apr. 16, 1912.

5 SHEETS-SHEET 2.

III I TILIIIIIIII IIIIIIIII% (haw. e I,

v Gr jliblrown ATTOR N EY COLUMBIA PLANOGRAPH 50.. WASHINGTON. n. c.

G. H. BROWN.

WOOD SAWING MACHINE.

APPLICATION FILED N0V.18 1909.

1,023,296. Patented Apr. 16, 1912.

5 SHEETS-SHEET 3.

WITNESSES: INVENTOR ATTORNEY COLUMBlA PLANOGRAPH c0., WASHINGTON, u. C.

G. H. BROWN. W001) S'AWING MACHINE.

APPLICATION FILED NOV. 18, 1909.

1,023,296. I Patented Apr. 16, 1912.

5 BHEETSSHEET 4.

n 4 I H; lllll;IIITII][[[llllIlllllllllllllllllllllllllllllIlllllllamumtoz wi/bnwz eo v COLUMBIA PLANOGRAPH 60v, WASHINGTON, u. C.

G. H. BROWN.

WOOD SAWING MACHINE.

APPLICATION FILED NOV. 18, 1909.

1,023,296. Patented Apr. 16, 1912.

5 SHEETS-SHEET 5.

avwe/n floz WW I eare firoznz'.

:0LuMm.\ ILANOGRAPII 60., WASHINGTON, D. c.

GEORGE OWN, QF IEE EBSQE,

WQQD-SAWING- MACHINE,

Application; filed: November 1' Specification ofj Letters Patent.

Pate tedAnr- J1 2-v 8,1909; SerjaLNo. 528 7.2(),

T 0 all whom it may concern:

Be it known that I, GEORGE BROWN,

a citizen of the United States, residingat I A further object is toprovide a machine 5 that can be operated in conjunction with other woodworking machines without interference, and readily adjusted intoposition or out of position.

Finally, the object of my invention is toprovide a device of thecharacter described that will be strong, durable, efficient and simpleand comparativelyinexpensive to produce, also one in Which the severalparts will not be likely to get out of working order.

With the above and other obj ects in; view, the invention has relationto certain novel features of construction and operation, an example ofwhich is described in the following specification and illustrated in theaccompanying drawing, wherein:

Figure 1 is a front elevation of the machine, Fig. 2 is a verticalsection, and Fig. 3 is a rear elevation. Fig. 4 is a longitudinalsectional view of the machine, taken at right angles to Fig. 2. Fig. 5is a top plan view of the machine.

In the drawings, the numeral 1 designates side frame members connectedby cross bars 2. A frame 3 is mounted in the machine. This frame 3 issupported on vertical screws 4 projecting through the upper part of themachine and having sprockets 5 thereon connected by sprocket chains 6.The frame can therefore be adjusted vertically so as to take differentsizes of lumber, inasmuch as the lumber is received upon the frame underthe upper bars 2, thus the lumber may also be of different heights andwidths. This adjustment also adapts the machine to the frames of planingmachines of different heights and the use of saws of different sizes ordiameters is also permitted, whereas in other devices, the sawsgenerally have to be of the same size in order to pro 1 du-ce properresults.

At its upper side the frame 3 has a table? ion which laterallyadjustable guides 8 are fmoun-ted. These guides are mounted on the endsof slides 9 havi'ngears lOthrough whichhorizontal adjusting screws 11-pass. These screws are provided at their outer ends with icranks 12. Byadjusting the screws by means of the cranks, the guides are moveditoward and away from the center to; accom- I' modatework of differentwidths. The guides at their forward ends are provided with vflaringmouth pieces 13- so' as to freely re- F ceive the work.

Within the frame 3 oneach side of the center, saw frames 14, are mountedfor ad'- Ejustment vertically; while arbor frames 15 are mounted one in;each saw frame, for aol ljustment transversely; Each frame 145isprovided with a horizontal screw 16, having a crank- 17' and engagingwith theframe 15 so that by turning the crank, the screw wili ad? justthe arbor frame 15-latera1-ly with relationto= the center of themachine.

The saw frames are provided with ears 18 ;Whi h re eive vert cal screws;19 supported on. the lower portion of the frame 3. The

-l.ower-- ends of the. screws are provided with sprockets 20, and thoseof each saw frame are connected by a sprocket chain 21; while one ofthescrews of each frame has a crank 22 on its lower end, by turningwhich the screws are rotated through the agency of the chain and therespective saw frame adjusted vertically.

Each arbor frame is adapted to receive a saw arbor 23 disposed at anangle toward the upper inner corner of the frame beyond which itprojects across the center of the machine. On each arbor a pulley 24 isfastened and engaged by a belt 25 passing about a pulley wheel 25 on adriving shaft 26 supported in bearings 27 on standards28 arranged at therear of the machine as shown in Fig. 3.

It will be noted by observing Fig. 3 that the guides 8 extend from frontto rear of the machine and the arbors extend transversely of the machineand one in front of the other and their upper ends crossing each other.Circular saws 29 are fixed on the upper ends of the arbors and by reasonof the crossed arbors, the upper portions of the saws stand in crossedrelation so as to cut a dove-tailed groove orpocket in the under side ofthe work.

By means of the adjustable arbor frames, the saws may be adjustedlaterally and the width of the groove or pocket cut in the work therebyvaried. The adjustable saw frames not only permit the saws to be raisedand lowered vertically to regulate the depth of the cut but allow theuse of saws of different diameters. The adjustable support for the frame3 permits that frame to be raised or lowered as the occasion mayrequire.

After the parts have been properly adjusted and the guides positionedthe work is fed to the machine between the flaring mouth pieces 13 andejected at the rear end of the machine properly cut or grooved.

What I claim, is:

1. In a wood sawing machine, a frame, a work supporting frame adjustablevertically in the first named frame, intermediate frames independentlyadjustably mounted in the work supporting frame, arbor frames vadjustable horizontally in the intermediate frames, and rotatable sawscarried by the arbor frames.

2. In a wood sawing machine, a main frame, a work supporting framemounted 7 in the main frame, means for adjusting the work supportingframe vertically, intermediate frames mounted in the work supportingframe, means for adjusting intermediate frames vertically, arbor framesmounted in the intermediate frames, means for independently adjustingthe arbor frames horizontally, rotatable saws carried by the arborframes, and means for imparting motion to the saws.

3. In a wood sawing machine, a main frame, a work supportlng framemounted in the main frame, means for adjusting the work supporting framevertically, intermediate frames mounted in the work supporting frames,means for vertically adjusting the intermediate frames independently ofthe work supporting frames, arbor frames mounted 1n the intermediateframes, means for horizontally adjusting the arbor frames longitudinallyand independently of the intermediate frames, and rotatable saws carriedby the arbor frames.

4:. In a wood sawing machine, a main frame, a work supporting frameadjustably mounted in the main frame, laterally adjustable guides forreceiving the work and carried by the work supporting frame, said guidesbeing independently adjustable, intermediate frames independentlyvertically adjustable in the work supporting frame, arbor framesadjustable transversely to the adjustment of the intermediate frames,and rotatable saws carried by the arbor frames.

In testimony whereof I have signed my name to this specification in thepresence of two subscribing witnesses.

GEORGE H. BROWN.

Witnesses:

G. B. GRULsoN, J. S. MURRAY.

Copies of. this patent may be obtained for five cents each, byaddressing the Commissioner of Patents,

Washington, D. G.

